Lesser Nighthawk (Chordeiles acutipennis subsp. littoralis) Sexes similar. Photographed along the shoreline of Catie lake at Universidad Catie (Centro Agronmico Tropical de Investigacin y Enseanza) Turrialba, Cartago Province, Costa Rica at 638 m (2,093 ft) elevation. Surrounding area is a park-like setting in a highly disturbed lowland rainforest.